While it has not been too hot here in the Southeast, that is not true in other parts of the world. For example, the extreme heat in California and surrounding states has caused significant damage to crops such as lettuce, browning the edges and making them unsellable because of cosmetic damage or just killing them outright. That means the produce shortages are being seen more often due to heat-related destruction. Supply-chain issues just make that worse. You can read more in the Wall Street Journal here.